With the new engine, that is already utilized in other models including the Cascada, Astra five-door hatchback, Astra Sports Tourer and Zafira Tourer, the Astra GTC averages 6.1 liters/100 km (38.55 mpg), while CO2 emissions are rated at 143 g/km – values for the model with six-speed manual transmission and Start/Stop technology. Compared to the 1.6-liter Turbo predecessor, the new engine boasts a 15 percent reduction in fuel consumption.

The Astra GTC 1.6 SIDI Turbo accelerates from zero to 100 km/h in 8.6 seconds and sprints from 80 to 120 km/h in 9.3 seconds in fifth gear, with top speed rated at 219 km/h (136 mph).

The new Astra GTC 1.6 SIDI is available with either a six-speed manual or a six-speed automatic transmission that features an Active Select function to allow manual shifting. Prices start from €23,850 ($31,210) in Germany.